EP 1758226 A1 20070228 - BATTERY PACK PROTECTING CIRCUIT AND BATTERY PACK
Title (en)
BATTERY PACK PROTECTING CIRCUIT AND BATTERY PACK
Title (de)
BATTERIEPACK-SCHUTZSCHALTUNG UND BATTERIEPACK
Title (fr)
CIRCUIT DE PROTECTION DE PAQUET DE BATTERIES ET PAQUET DE BATTERIES
Publication
Application
Priority
- JP 2005009326 W 20050523
- JP 2004178440 A 20040616
- JP 2004206244 A 20040713
Abstract (en)
A first switching element (34a) which shuts off a discharging current flowing to a battery cell (31) and a second switching element (34b) which shuts off a charging current are provided. A positive temperature coefficient thermistor (Rcpb) is inserted between a gate control terminal (Dout) or (Cout) of a protective control circuit (33) and a gate of at least one of the switching elements (34a) and (34b), and a resistor (R1b) is connected between the gate and a source of the switching element. The positive temperature coefficient thermistor (Rcpb) is thermally connected to the first and second switching elements (34a) and (34b) or a battery cell (31). Thus, an abnormally overheated state of the switching elements (34a) and (34b) or a battery cell (31) leads to an increase in the resistance of the positive temperature coefficient thermistor (Rcpb) to shut off the switching element (34b), and the protection function is achieved.
IPC 8 full level
H02J 7/00 (2006.01); H02H 5/04 (2006.01); H02H 7/18 (2006.01)
CPC (source: EP KR US)
H01M 50/581 (2021.01 - KR); H01M 50/583 (2021.01 - KR); H02H 3/085 (2013.01 - EP KR US); H02H 5/042 (2013.01 - KR); H02H 7/18 (2013.01 - EP KR US); H02J 7/00304 (2020.01 - EP KR); H02J 7/00309 (2020.01 - EP KR); H02J 7/0031 (2013.01 - EP KR US); H01M 2200/106 (2013.01 - KR); H02H 5/042 (2013.01 - EP US)
Citation (search report)
See references of WO 2005124964A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1758226 A1 20070228; KR 100862534 B1 20081009; KR 20070024606 A 20070302; TW 200614625 A 20060501; TW I341067 B 20110421; US 2007164709 A1 20070719; US 2008246441 A1 20081009; US 7391185 B2 20080624; US 7550950 B2 20090623; WO 2005124964 A1 20051229
DOCDB simple family (application)
EP 05741433 A 20050523; JP 2005009326 W 20050523; KR 20067026446 A 20061215; TW 94120056 A 20050616; US 1434208 A 20080115; US 61210706 A 20061218